September weather forecastFiesole, Italy

September

Weather in September

September, the first month of the autumn in Fiesole, is still a warm month, with an average temperature ranging between max 23.7°C (74.7°F) and min 12.7°C (54.9°F).

Temperature

The arrival of September signals a shift in temperature, down from a moderately hot 29.6°C (85.3°F) in August to a still warm 23.7°C (74.7°F). The month of September records an average low-temperature of 12.7°C (54.9°F).

Humidity

The average relative humidity in September is 72%.

Rainfall

In September, the rain falls for 12.5 days. Throughout September, 43mm (1.69") of precipitation is accumulated. Throughout the year, in Fiesole, there are 164.7 rainfall days, and 598mm (23.54") of precipitation is accumulated.

Snowfall

In Fiesole, snow does not fall in April through November.

Daylight

In Fiesole, Italy, the average length of the day in September is 12h and 31min.
On the first day of the month, sunrise is at 06:38 and sunset at 19:50. On the last day of September, in Fiesole, sunrise is at 07:11 and sunset at 18:57 CEST.

Sunshine

The average sunshine in September is 10.2h.

UV index

In September, the average daily maximum UV index in Fiesole is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Act with care - The need to guard against sun damage is communicated. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

In September, in Fiesole, the average high-temperature is 23.7°C (74.7°F), and the average low-temperature is 12.7°C (54.9°F). The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is estimated at 33°C (91.4°F).

In Fiesole, Italy, the average relative humidity in September is 72%.

In Fiesole, in September, during 12.5 rainfall days, 43mm (1.69") of precipitation is typically accumulated.

In Fiesole, snow does not fall in April through November.

In September, the average day length in Fiesole, Italy, is 12h and 31min.

On the first day of September in Fiesole, sunrise is at 06:38 and sunset at 19:50. On the last day of the month, sunrise is at 07:11 and sunset at 18:57 CEST.

In Fiesole, the average sunshine duration in September is 10.2h.

In Fiesole, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Fiesole, Italy

  • Average high temperature in September: 23.7°C

The warmest month (with the highest average high temperature) is August (29.6°C).
The month with the lowest average high temperature is January (7.5°C).

  • Average low temperature in September: 12.7°C

The month with the highest average low temperature is August (16.2°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).

Average pressure in September
Fiesole, Italy

  • Average pressure in September: 1015.5mbar

The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is July (1013.5mbar).

Average wind speed in September
Fiesole, Italy

  • Average wind speed in September: 8.1km/h

The windiest month (with the highest average wind speed) is March (11km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).

Average humidity in September
Fiesole, Italy

  • Average humidity in September: 72%

The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (63%).

Average rainfall in September
Fiesole, Italy

  • Average rainfall in September: 43mm

The wettest month (with the highest rainfall) is November (80mm).
The driest month (with the least rainfall) is August (33mm).

Average rainfall days in September
Fiesole, Italy

  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is August (10.9 days).

Average snowfall in September
Fiesole, Italy

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (10mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days in September
Fiesole, Italy

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Fiesole, Italy

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 10h and 12min

The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).

Average sunshine days in September
Fiesole, Italy

  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is August (16.6 days).
The month with the least sunshine days is May (9.1 days).

Average UV index in September
Fiesole, Italy

  • Average UV index in September: 5

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Fiesole, Italy

  • Average cloud cover in September: 25

The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 15).

Average visibility in September
Fiesole, Italy

  • Average visibility in September: 9km

The months with the highest visibility are March, April, May, June, July, August and September (9km).
The months with the lowest visibility are January, February, October, November and December (8km).